| Server IP : 93.115.150.27 / Your IP : 216.73.216.221 Web Server : LiteSpeed System : Linux host2.azar.host 4.18.0-553.80.1.lve.el8.x86_64 #1 SMP Wed Oct 22 19:29:36 UTC 2025 x86_64 User : dorfakkh ( 1797) PHP Version : 8.1.34 Disable Function : show_source, system, passthru, exec, popen, proc_open, mail MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : OFF | Pkexec : OFF Directory : /lib/python3.6/site-packages/sepolgen/__pycache__/ |
Upload File : |
3
Kl�fQ@ � @ s� d Z ddlZddlZddlmZ ddlmZ ddlmZ ddlmZ ddlm Z G d d
� d
�Z
d d � Z d
d� Z dd� Z
dd� Zdd� ZG dd� d�ZG dd� d�ZG dd� d�ZG dd � d �ZdS ) z7
Classes for representing and manipulating interfaces.
� N� )�access)� refpolicy)� objectmodel)�matching)�_c @ sH e Zd ZdZdd� Zdd� Zdd� Zeee�Zedd � d
�Z d d � Z
d
S )�Paramz;
Object representing a paramater for an interface.
c C s" d| _ tj| _tj� | _d| _d S )N� T)� _Param__namer �SRC_TYPE�type�IdSet� obj_classesZrequired)�self� r � /usr/lib/python3.6/interfaces.py�__init__& s
zParam.__init__c C s t j|�std| ��|| _d S )NzName [%s] is not a param)r �
is_idparam�
ValueErrorr
)r �namer r r �set_name, s
zParam.set_namec C s | j S )N)r
)r r r r �get_name1 s zParam.get_namec C s t | jdd � �S )Nr )�intr )r r r r �<lambda>6 s zParam.<lambda>)�fgetc C s d| j tj| j dj| j�f S )Nz0<sepolgen.policygen.Param instance [%s, %s, %s]>� )r r � field_to_strr �joinr )r r r r �__repr__8 s zParam.__repr__N) �__name__�
__module__� __qualname__�__doc__r r r �propertyr �numr r r r r r " s
r c C s� d}| |kr�|| }||j kr"d S |tjks6|tjkr�|j tjksN|j tjkr�d}|r`|jg}ng }x&tj|j|�D ]}|tj krtd}P qtW tj|_ q�d}n t
� }| |_ ||_ |||j < |r�|jj |j� |S )Nr r )
r r r �TGT_TYPE� obj_class� itertools�chainr r Zimplicitly_typed_objectsr r �add)r r �av�params�ret�pZavobjs�objr r r �__param_insert> s0
r/ c C s~ d}d}t j| j�r.t| jtj| |�dkr.d}t j| j�rTt| jtj| |�dkrTd}t j| j�rzt| jtj | |�dkrzd}|S )aj Extract the paramaters from an access vector.
Extract the paramaters (in the form $N) from an access
vector, storing them as Param objects in a dictionary.
Some attempt is made at resolving conflicts with other
entries in the dict, but if an unresolvable conflict is
found it is reported to the caller.
The goal here is to figure out how interface parameters are
actually used in the interface - e.g., that $1 is a domain used as
a SRC_TYPE. In general an interface will look like this:
interface(`foo', `
allow $1 foo : file read;
')
This is simple to figure out - $1 is a SRC_TYPE. A few interfaces
are more complex, for example:
interface(`foo_trans',`
domain_auto_trans($1,fingerd_exec_t,fingerd_t)
allow $1 fingerd_t:fd use;
allow fingerd_t $1:fd use;
allow fingerd_t $1:fifo_file rw_file_perms;
allow fingerd_t $1:process sigchld;
')
Here the usage seems ambigious, but it is not. $1 is still domain
and therefore should be returned as a SRC_TYPE.
Returns:
0 - success
1 - conflict found
r Fr )
r r �src_typer/ r r �tgt_typer% r& � OBJ_CLASS)r* r+ r, Z found_srcr r r �av_extract_paramsj s $ r3 c C s" t j| j�r t| jtjd |�S d S )N)r r �roler/ r ZROLE)r4 r+ r r r �role_extract_params� s r5 c sl � fdd�}d}|| j tj�r"d}|| jtj�r4d}|| jtj�rFd}tj| j �rht
| j tj d � �rhd}|S )Nc s2 d}x(| D ] }t j|�r
t||d � �r
d}q
W |S )Nr r )r r r/ )�setr r, �x)r+ r r �extract_from_set� s
z2type_rule_extract_params.<locals>.extract_from_setr r ) � src_typesr r � tgt_typesr% r r2 r r Z dest_typer/ Z DEST_TYPE)�ruler+ r8 r, r )r+ r �type_rule_extract_params� s r< c C s6 d}x,| j D ]"}tj|�r t|tjd |�r d}q W |S )Nr r )�argsr r r/ r r )�ifcallr+ r, �argr r r �ifcall_extract_params� s
r@ c @ s e Zd Zdd� Zdd� ZdS )�AttributeVectorc C s d| _ tj� | _d S )Nr )r r �AccessVectorSet)r r r r r � s zAttributeVector.__init__c C s | j j|� d S )N)r �add_av)r r* r r r rC � s zAttributeVector.add_avN)r r r! r rC r r r r rA � s rA c @ s$ e Zd Zdd� Zdd� Zdd� ZdS )� AttributeSetc C s
i | _ d S )N)�
attributes)r r r r r � s zAttributeSet.__init__c C s || j |j< d S )N)rE r )r �attrr r r �add_attr� s zAttributeSet.add_attrc C s~ dd� }d }x^|D ]V}|d d� }|d dkrF|r<| j |� ||�}q|r|jd�}tj|�}|j|� qW |rz| j |� d S )Nc S sH | dd� j � }t|�dks(|d dkr4td| ��t� }|d |_|S )Nr � r Z Attributez#Syntax error Attribute statement %s���)�split�len� SyntaxErrorrA r )�line�fields�ar r r �
parse_attr� s
z*AttributeSet.from_file.<locals>.parse_attrr r �[�,rI )rG rJ r � AccessVectorrC )r �fdrP rO rM �lr* r r r � from_file� s
zAttributeSet.from_fileN)r r r! r rG rV r r r r rD � s rD c @ sF e Zd Zdi fdd�Zi fdd�Zdd� Zdd � Zd
d � Zd d
� ZdS )�InterfaceVectorNc C s6 d| _ d| _tj� | _i | _|r,| j||� d| _d S )NTr F)�enabledr r rB r+ �from_interface�expanded)r � interfacerE r r r r � s
zInterfaceVector.__init__c
C sF |j | _ xN|j� D ]B}|jtjjkr&qd|j kr2qtj|�}x|D ]}| j|� qBW qW |r�x�|j � D ]v}xp|j
D ]f}||j
kr�qr|j
| }xJ|jD ]@} t j | �}|j |j kr�|j
|_ |j|j kr�|j
|_| j|� q�W qrW qfW x |j� D ]}
t|
| j�r�q�W x |j� D ]} t| | j��r�qW x |j� D ]} t| | j��r*�q*W d S )NZ dontaudit)r ZavrulesZ rule_typer ZAVRuleZALLOWr Zavrule_to_access_vectorsrC ZtypeattributesrE �copyr0 r r1 Zrolesr5 r+ Z typerulesr< �interface_callsr@ )
r r[ rE ZavruleZavsr* Z
typeattributerF Zattr_vecrO r4 r; r> r r r rY � s>
z InterfaceVector.from_interfacec C s t || j�dkr| jj|� d S )Nr )r3 r+ r rC )r r* r r r rC 3 s zInterfaceVector.add_avc C s< g }|j d| j � x | jD ]}|j t|�� q W dj|�S )Nz[InterfaceVector %s]�
)�appendr r �strr )r �sr* r r r � to_string9 s
zInterfaceVector.to_stringc C s | j � S )N)r )r r r r �__str__@ s zInterfaceVector.__str__c C s d| j | jf S )Nz<InterfaceVector %s:%s>)r rX )r r r r r C s zInterfaceVector.__repr__) r r r! r rY rC rb rc r r r r r rW � s 4rW c @ sx e Zd Zddd�Zdd� Zdd� Zdd � Zd
d � Zd d
� Zi fdd�Z di fdd�Z
dd� Z dd� Z dd� Z
dd� ZdS )� InterfaceSetNc C s i | _ i | _g | _|| _d S )N)�
interfaces� tgt_type_map� tgt_type_all�output)r rh r r r r H s zInterfaceSet.__init__c C s | j r| j j|d � d S )Nr^ )rh �write)r r` r r r �oN s zInterfaceSet.oc C s� x�t | jj� dd� d�D ]�}|jd|j � x:t |jj� dd� d�D ] }|jd|jtj|j f � qDW |jd� t |j j
� �}x&|D ] }|jdj |�� |jd � q�W qW d S )
Nc S s | j S )N)r )r7 r r r r S s z&InterfaceSet.to_file.<locals>.<lambda>)�keyz[InterfaceVector %s c S s | j S )N)r )r7 r r r r U s z%s:%s z]
rR r^ ) �sortedre �valuesri r r+ r r r r Zto_listr )r rT Ziv�paramZavlr* r r r �to_fileR s
zInterfaceSet.to_filec C s� dd� }d }x^|D ]V}|d d� }|d dkrF|r<| j |� ||�}q|r|jd�}tj|�}|j|� qW |rz| j |� | j� d S )Nc S s� | dd� j � }t|�dk s(|d dkr4td| ��t� }|d |_t|�dkrTd S xb|dd � D ]R}|j d�}t|�dkr�td| ��t� }|d |_tj|d |_||j |j< qbW |S ) Nr rH r rW z)Syntax error InterfaceVector statement %s�:z-Invalid param in InterfaceVector statement %srI )
rJ rK rL rW r r r Z str_to_fieldr r+ )rM rN �ifvZfieldr- rn r r r � parse_ifv^ s
z)InterfaceSet.from_file.<locals>.parse_ifvr r rQ rR rI )�add_ifvrJ r rS rC �index)r rT rr rq rM rU r* r r r rV ] s
zInterfaceSet.from_filec C s || j |j< d S )N)re r )r rq r r r rs � s zInterfaceSet.add_ifvc C s� xz| j j� D ]l}t� }x:|jD ]0}tj|j�rB| jj|� t� }P |j|j� q W x$|D ] }| j j
|g �}|j|� qXW q W d S )N) re rm r6 r r r1 rg r_ r) rf �
setdefault)r rq r: r* r rU r r r rt � s
zInterfaceSet.indexc C s t ||�}| j|� d S )N)rW rs )r r[ rE rq r r r r) � s
zInterfaceSet.addc C s@ x(t j|j� |j� �D ]}| j||� qW | j|� | j� d S )N)r' r( re � templatesr) �expand_ifcallsrt )r �headersrh rE �ir r r � add_headers� s
zInterfaceSet.add_headersc C sZ t j|�rPt|dd � �}|t|j�kr,d S |j|d }t|t�rH|S |gS n|gS d S )Nr )r r r rK r= �
isinstance�list)r �idr> r$ r? r r r � map_param� s
zInterfaceSet.map_paramc
C s� | j |j|�}|d krd S | j |j|�}|d kr4d S | j |j|�}|d krNd S tj� }x0|jD ]&}| j ||�} | d krzq^q^|j| � q^W t|�dkr�d S x:|D ]2}
x,|D ]$} x |D ]} |j j
|
| | |� q�W q�W q�W d S )Nr ) r~ r0 r1 r& r r
Zperms�updaterK r r) )
r rq r* r> r9 r: r Z new_permsZpermr- r0 r1 r& r r r �
map_add_av� s*
zInterfaceSet.map_add_avc C s� |d fg}| j |j }d|_x�t|�dkr�|jd�\}}| j |j }||krrx |jD ]}| j|||� qTW |jrrq xv|j� D ]j} | j|jkr�| j t
d�� d S y|| j }
W n* t k
r� | j t
d| j �� w|Y nX |j |
| f� q|W q W d S )NTr r z Found circular interface classz#Missing interface definition for %srI )
re r rZ rK �popr r� r] Zifnamerj r �KeyErrorr_ ) r r[ �
if_by_name�stackrq ZcurZ
cur_ifcallZcur_ifvr* r> Znewifr r r �do_expand_ifcalls� s*
z InterfaceSet.do_expand_ifcallsc C sZ i }x&t j|j� |j� �D ]}|||j< qW x(t j|j� |j� �D ]}| j||� qBW d S )N)r' r( re rv r r� )r rx r� ry r[ r r r rw � s
zInterfaceSet.expand_ifcalls)N)r r r! r rj ro rV rs rt r) rz r~ r� r� rw r r r r rd G s
# $rd )r" r\ r' r r r r r Z sepolgeni18nr r r/ r3 r5 r< r@ rA rD rW rd r r r r �<module> s" ,4 Z